Instructables
Picture of how to downgrade to any ios FROM any ios
this should work
its really simple
you will need
saved shsh blobs for ios
an ios firmware file that matches the blobs
latest version of redsn0w



 
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Step 1: Enter dfu mode

Picture of enter dfu mode
there are many instructions on the web and redsnow has some

Step 2: Run redsnow

Picture of run redsnow
run redsnow and go into the menus
extras>even more>restore
then follow the instructions
Kaluzhski1 year ago
Is there any solution for people who have not saved shsh blobs? Can I reproduce them or download?
The nerdling (author)  Kaluzhski1 year ago
i'm not sure
Where do I get the firmware from
The nerdling (author)  lswashbuckle1 year ago
just google iphone, ipod, ipad or whatever ipsw
the firmwares are in a .ipsw format
try this website
http://www.ipswdownloader.com/download-iphone-ipsw-files.php
why would you want to downgrade?
The nerdling (author)  amandaghassaei2 years ago
my iphone 3gs had ios 5.1.1 on it and it was slow, when i had 4.1 on it, it was fast sooo downgrades